The street was originally taken up with private residences, but at length monetary institutions commenced to find their way into it. The Bank of New York was located here in 1791, at the corner of William street. Other institutions, and private bankers, soon followed it, and the work of improvement went on until the street of to-day is the result. Famous lawyers have also had their offices in this street. Alexander Hamilton's sign might once have been seen here, not far from where his humble monument now stands in Trinity churchyard, and the name of Caleb Cushing is now to be found just a little below Broadway. The street fairly began its present career in the days of Jacob Little, "the great bear of Wall street." He opened an office here in 1822, and, in twelve years, by dint of such labor as few men are capable of performing, placed himself at the head of American operators. His credit was good for any amount, for his integrity was unimpeachable. He could sway the market as he pleased, and his contracts were met with a punctuality and fidelity which made "his word as good as his bond." Efforts were made to ruin him, but his genius and far-sightedness enabled him to defeat all his enemies with their own weapons. His gains were enormous, and so were his losses. He met the latter cheerfully. The late war, however, brought his reverses so rapidly upon him that he had not the time to meet one before another stared him in the face. Still, he was calm and undismayed. He gave up his last dollar without repining, saying that he would willingly sacrifice even life itself for the perpetuity of the Union and the Constitution. He died early in the year 1861, honored by all, and leaving his life an example to those of us who are left behind him. He was a devout member of the Episcopal Church, but he extended his charities, which, though quiet, were unusually large, to all denominations. THE SUB-TREASURY. The Sub-Treasury is a handsome white marble building, located at the corner of Wall and Nassau streets. The Treasury is built in the Doric style of architecture; and its massive flight of steps and handsome portico present a striking appearance. It is built in the most substantial manner, and has an entrance at the rear on Pine street. The interior is tastefully arranged, and massive iron gratings protect the employees from surprise and robbery. The vaults are burglar-proof. This is the principal depository of the Government, and millions of dollars are always in its vaults. THE CUSTOM HOUSE. The Custom House was built for and formerly used as the Merchants' Exchange. It is situated at the corner of Wall and William streets, and is a large, handsome, granite edifice. The colonade at the front entrance and the rotunda are well worth seeing. BANKING HOUSES.